Bill, I think I understand and agree with most of the people posting on here. I think all of us are happy you are not letting your W cake-eat and some of the other stuff, the massages!, and stuff. I think that is a huge positive step that you can envision the future without your W in it, and know that you'll be ok.
I don't think you can get over loving someone in one day. Yes, you can distract yourself, but I think it is a temporary band-aid, and eventually you have to go through the process. I do worry you are in a rebound situation, and it is prob. not healthy for your or your friend. You probably should be thinking more along just friendship with her rather than dating, otherwise I worry you and/or your friend might get hurt. I think neither of you need something like that right now.
I also agree that you shouldn't give your W the option anymore. I think she was testing you. If she is sincere, you will know it. How many times have you gone back and forth and she is probably waiting for that again.